Project: Tip Time

Introduction

A Tip Calculator For Android That Will Help You Figure Out How Much To Tip Someone For Exceptional Service.

Pre-requisites

• Complete Unit 1 of Android Basics in Kotlin

What you'll learn

• Classes and inheritance in Kotlin
• XML layouts for Android
• View Binding
• Changing App Theme, Icon & Better UX
• How to write Instrumentation Tests

Resources

Inheritance & Classes

• Inheritance (Example)
• Classes
• Constructors

XML layouts for Android

• TextView
• EditText
• Specify the input method type
• Radio Buttons guide
• RadioButton
• RadioGroup
• Switch
• ConstraintLayout

Logics to Calculate Tip

• Double data type in Kotlin
• Numeric data types in Kotlin
• Null Safety in Kotlin
• App Manifest
• View binding
• NumberFormat.getCurrencyInstance()
• string parameters
• testing
• Logcat
• Analyze a stack trace

Change the App Theme

• The color system
• Dark theme
• Android Styling: Themes vs Styles
• Android Styling: Common Theme Attributes
• Setting up a Material Components theme for Android
• Tip on dark theme
• WebAIM Contrast Checker
• Material Component Themes (see step 4)
• Material Theming with MDC
• Dark Theme with MDC
• Android Styling: Common Theme Attributes

Change the App Icon

• Design guidelines on Android icons
• Adaptive Icons
• Understanding Android Adaptive Icons
• Designing Adaptive Icons
• Implementing Adaptive Icons
• Adaptive Icon Playground app
• Create Adaptive and Legacy Launcher icons
• Supporting different pixel densities
• Put app icons in mipmap directories
• Vector Drawables Overview
• VectorDrawable class

More Polished User Experience

• Text fields
• Selection controls: switches
• Material Icons
• Typography Theming
• Gravity
• Make your Android App Accessible

Note

• This Project is Completed by Me.
• Link to APK File is Tip Time App
• DO NOT ALTER THE PROVIDED TESTS